It's a workaround, but you could go to your account's General Settings on the main desktop site, and change the Default Thread Subscription Mode to "Instantly using Email, Push." Assuming you have your email app set to notify you for new emails, you'll at least see the emails telling you that you have a reply to a subscribed thread (although I'm not sure what the "Push" part means).

Moved this thread to the Android Central Apps forum, since that's where the developer checks for any issues that arise.

Yes, there are two apps. The one that's just called "Android Central" is the app developed by AC, which includes blog articles, videos, and the forums. The AC Forums app uses Tapatalk, and has somewhat more functionality than the Android Central app (but without the blog articles).

The Android Central App had been renamed then revised recently.
It was showing on the Play Store, iirc, as AC Forums Apps tips and tricks {or General something...}

It's now Android Central Tips and Apps.

The Android Central App and the AC Forums App are two different apps. The Android Central App is primarily for viewing blog posts from Android Central writers as well as reading the forums. The AC Forums App is is ONLY for the forums.